This software depends on the following non-Python packages:
You’ll find below several ways of installing these dependencies on all major OSes.
All dependencies are available through HomeBrew:
$ brew install graphviz
All dependencies are available via your favorite distribution package manager.
Be it Ubuntu or Debian:
$ sudo apt install graphviz
$ dnf install graphviz
All dependencies are available through Chocolatey:
C:\> choco install graphviz
This package is available on PyPi,
so you can install the latest stable release and its python dependencies with a
$ pip install chessboard
pip is not installed on your system, see pip installation
FYI, here is a graph of Python package dependencies: